DeletedUser13405
Guest
Wargs into Ghost. Then, comes back as Azhor Akai. There was a lot of emphasis in Book 5 on how the Wall "preserves" things...meat for several winters, why the dead did not turn when in the ice cells, etc. I think Jon's body is placed in the Wall for preservation, Ghost (with warged Jon) journeys into the crypts below Winterfell and there finds something that enables him to come back as Azhor Akai.